Pinking machine



Aug. 30, 1938. s. NASO T AL PINKING MACHINE 5 Sheets-Sheet 1 Filed Nov.23, 1936 gteplwn; Iaso,

Aug; 30, 1938. s. NAso ET AL 5 Sheets-Sheet 2 PINKING MACHINE Filed Nov,25, 1956 WWO Au 30, 1938. s NA AL 2,128,846

'PINKING MACHINE Patented Aug. 30, 1938 UNITED STATES PATENT OFFICE 12Claims.

This invention relates to a pinking machine designed primarily for usein pinking the bottoms 'of trouser legs, but it is to be understood thata machine, in accordance with this invention is for use inpinking anymaterial for which it may be 'found applicable, and the invention hasfor its ob- .ject toprovide, in a manner as hereinafter set forth, amachine of the class referred to for uniformly serratinggat oneoperation, the outer end of a trouser leg,

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine ofthe class referred to under thecontrol of an attendant for uniformly serrating simultaneously aplurality of superposed plys or folds of fabric.

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine of the class referred to having anelement of safety to prevent injury to the attendant when positioningthe work to be acted upon and during the pinking operation. 1

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine of the class referred to including aguard means under the control of the attendant, a work-pinking meansunder the control of the attendant and with the said means beingindependent of and free of connection to each other and independentlycontrolled by the attendant. There is also a double functionalinterrelationship (or safety interlock) at times between the safetycontrols for the prevention of accidents, as indicated in Figs. 3 and'7.

A further object of the invention is to provide, in a manner ashereinafter set forth, a machine of the class referred to includingWork-cutting means for pinking, having a stationary and a springcontrolled shiftable cutter, an oscillatory lever for coaction with saidcutting means, an operating mechanism for and free of connection to saidlever and including a driven part and a pawl controlled cam structurenormally loosely mounted on said driven part, and means under thecontrol of the attendant to provide for the coupling of said driven partand cam structure in unison to cause the movement of said lever in adirection to provide for the cutting means to carry out its function ofpinking and with the coupling later uncoupled for a one-revolutionclutch effect.

The invention aims to provide, in a manner as hereinafter set forth, athoroughly efficient pinking machine.

With the foregoing and other objects which may hereinafter appear, theinvention consists of the novel construction, combination andarrangement of parts as will be more specifically described and are asillustrated in the accompanying drawings wherein is shown the preferredembodiment of the invention, but it is to be understood that changes,variations and modifications may beresorted to which fall within thescope of the invention as claimed.

In the drawings- Figure 1 is a top plan view of the machine showing aply of fabric which has been subjected to the pinking operation carriedout by the machine,

Figure 2 is an inverted plan View looking towards the lower face of theplatform of the ma chine and with the supporting frame for the platformomitted,

Figure 3 is a front elevation of the machine, partly in section andshowing the actuating means for the shifting means of the upper cutterin inactive. position,

Figure 4 is a section on line 4-4, Figure 3 with the cutters or pinkersin inactive position,

Figure 5 is a view similar to Figure 4 with the pinkers or cutters shownas having passed through their pinking or cutting operation,

Figure 6 is a section on line 6-6, Figure 1,

Figure 7 is a fragmentary view in elevation showing the actuating meansor mechanism for the shifting means of the upper cutter in activeposition,

Figure 8 is a fragmentary view in perspective, upon a reduced scale, ofthe top part of the machine,

Figure!) is a section on line 9--9, Figure 3,

Figure 10 is a fragmentary View in perspective of part of the uppercutter or pinker,

Figure 11 is a fragmentary view in perspective of part of the lowercutter or'pinker, and

Figure 12 is a section on line l2i2, Figure 7.

The machine includes a rectangular platform I of any suitable width,length and thickness and constructed from any suitable material. Theplatform I is supported at its ends upon a pair of spaced, parallel,reinforced, oppositely disposed, like frames 3, 4. Each frame has itsbody formed of members of angle-shape cross section. The frames haveoutwardly extending flanges 5 at their upper ends which bear against andare anchored to the lower face of platform I by the holdfast means 6.The frames have their lower ends formed with outwardly extending lugs orflanges l which are anchored to a floor or other support 8 by theholdfast means 9. Connected to the lower portions of the frames 3, 4 isa supiii .,- cate with the opening 20.

- of the platform I porting shaft I having loosely mounted thereon apair of forwardly extending tread levers II, I2. The levers II, I2 aremounted on shaft Ill in a manner to prevent their sliding lengthwise ofthe shaft. The levers II, I2 are independent of each other and arerocked independently. The rear portion of lever II has a dependingextension I2 in which the angularly disposed lower end I3 of a push baror rod I4 is loosely mounted. The bar I4 has an upper-angularly disposedend I5. The ends I3, I5 are arranged in parallelism. The lever I2 hasits rear end formed with a depending extension I6 in which is looselymounted the angularly disposed lower end H of a push bar or rod I8. Theend I'I-extends in the same plane as the end I3and-in the samedirection. The push bar I8 is of greater length than the push bar I4 andhas an angularlydisposed upper end I9, Figures 2 and 3, which extends atright angles to the direction in which the upper end I5 of the bar I4extends. The purpose of the push bars I4, I8 will be hereinafterreferred to. The push bars I4, I8 are operated independently of eachother.

The platform I is formed with a rectangular opening 28 between itslongitudinal median and its rear edge. The opening 20 is intersected bythe transverse median of the platform I, but it extends a greaterdistance from one side of such median than from the other side of thelatter. The platform I in its upper face forwardly with respect to thefront wall of opening 23 is mortised as at 2!. The width of the mortiseis substantially the same as the length of opening 20. The

, mortise 2I merges at its inner end into the open-' ing 23. Securedwithin the mortise'2I and flush with the upper face of the platform I isa wear plate 22. The length of plate 22 is less than the length ofmortise 2|. The plate 22 has its forward edge abut against the forwardwall of the mortise. The upper face of the platform I bordering the rearwall of the opening 20 is mortised as at 23 (Figures 4 and 5) andsecured in the mortise 23, as well as being flush with the upper face ofplatform I is the upper part 24 of a deflector 25. The lower part of thedeflector 25 is indicated at 26. The part 26 depends into the opening 25and inclines towards the front wall of opening 20. The part 26 is spacedfrom the front wall of opening 20. The platform I is formed with anopening 21 (Figure 3) and openings 28, 29, 30 and 3I, (Figure 6). Theopenings 28 to 3I both inclusive are arranged rearwardly of the opening21. The openings 21 to 3! both inclusive are arranged rearwardly of thelongitudinal median of the platform. The upper face of the platform Ibordering the end walls of the openings 20 are formed with oppositelydisposed mortises 32, 33 (Figure 6). The bottom of the mortise 32 at theinner end of the latter is formed witha depression 35. The openings 28,29 communicate with the mortise 32. The openings 30 and 3I communicatewith the mortise '33. The mortises 32, 33 communi- Secured to the upperface of platform I and surrounding the mor tises 32, 33, with theexception of the inner'ends of these latter are oppositely disposedshields 36, 31. The holdfast devices 38 are provided for anchoring theshields to the upper face of the platform I.

Secured to the lower face of the platform I by the holdfast devices 39is a rectangular plate 4|] of materially less width and length than thatThe plate 40 has an opening 4| (Figures 4 and 5) which is arranged belowand has its walls align with the walls of the opening 20. Secured to theplate 40, extending up through the opening 4| and into the opening 20,bearing against the end walls of the openings 20 and 4| and extendingrearwardly at an inclination from the opening M is an open topconducting off chute 42 (Figures 4, 5 and 6) for the cuttings. The upperends of the sides of the'chute 42 are arranged below a lower cutter orpinker to be referred to.

The plate 43 is formed with openings 43, 44, and 46 (Figure 6) whichregister respectively with the openings 28, 29, 3I and 33 formed in theplatform I. The walls of the opening 43,

46 are threaded. Secured with the lower face of the plate 45 aremetallic washers 41, 43 having their inner edges registering with thewalls of'the openings 43, 46. The washers 41, 48 are also formed withopenings 49, 50 which register with the openings 44, 45 respectively.The plate 40 has its bottom formed with circular depending portions 5|,52 to which the washers 41, 48 are anchored directly. The openings 43,44, 45 and 45 extend in the said circular depending portions.

The machine includes a cutting or pinking device which will behereinafter termed a cutter device. The latter includes an upperhorizontally disposed reciprocatory cutter blade 53 (Figures 1, 4, 5, 6and and a lower stationary horizontally disposed cutter blade 54(Figures 1, 4, 5 and 11). The blade 53 is arranged against the bottomand the back of a cross head 55 merging at its ends centrally of andinto the inner sides of a pair of oval-shaped enlargements 56, 51. Thelower face of cross head 55 extends downwardly at an inclination fromenlargement 51 to enlargement 55. The cross head 55 is of angle shapecross section (Figure 10) to provide a vertical leg 58 and a horizontalleg 59 which extends rearwardly from the bottom of the leg 58 therebyproviding the bottom of the cross head '55 with an enlarged bearingsurface for the upper blade 53. The latter consists of a body part whichis of angle-shaped contour in cross section thereby providing ahorizontal leg 60 and a vertical leg BI and with the latter extendingupwardly from the rear side of the leg 60. The leg 65 in cross sectionis of materially greater length than the length in cross section of theleg 59 of the cross head 55. The leg 50 abuts against the lower face ofthe cross head 55 and extends forwardly therefrom as at 62. The leg BIabuts against the rear edge of the leg 59. The leg GI functions toprovide for the leg 60 extending the required distance from the front ofthe cross head 55. The blade 53 is bodily carried by the cross head. Theleg 6| of the blade 53 is connected, as at 62 to cross head 55 in amanner to provide for the horizontal adjustment of the blade along bothof the two perpendicular axes of the horizontal plane of part 60 ofblade 53 (Figure 10). The forward edge of the blade 53 is provided fromend to end with cutting teeth 63 to function in connection with theblade 54 to provide a pinking action. The blade extends downwardly at aninclination from the enlargement 51 to enlargement 56 and at the sameinclination as that of the bottom edge of the cross head, whereby blade53 will provide a progressive shearing action when it functions withblade 54 to perform the pinking operation. The blade 54 (Figures 1 and11) consists of a fiat rectangular body 54 which is seated within themortise 2I and abuts against the wear plate 22. The rear edge of theblade 54 is formed with cutting teeth 65 which coact with the teeth 63toperform the pinking action. The blade 54 extends into the openings 28and has its gullets align with the teeth of the blade 53. When theoperation of pinking is being performed by the blades 53, 54, the blade53 extends into the upperv end of opening 28 and has its teeth passthrough the gullets of the blade 54. The depression 35 provides aclearance for one end of the blade 53 when the latter is lowered intothe opening 28. The mortises 32, 33 provide clearances for theenlargements 56, 51 to permit of the teeth of the blade 53 passingthrough the gullets of the blade 54. The cross head 55 and enlargements56, 51 provide what may be termed a reciprocatory carrier for the blade53.

There is associated with the blade carrier a pair of vertically disposedcombined guide and stop elements 66, 61 of like form and each of whichconsists of a rod 68 of circular cross section provided near its upperend with an annular boss 69. The rods 68 extend down through a pair ofbearing sleeves 18 which are anchored in the enlargements 56, 51. Therods 68also extend down through the mortises 32, 33, the openings 28, 38and threadedly engage with the walls of the openings 43, 46. The bladecarrier is slidably mounted on the rods 68. The blade carrier is springcontrolled and it is shifted in a downward direction against the actionof its controlling springs to be referred to. The bosses 89 are arrangedin the path of the enlargements 56, 51 for limiting the upward movementof the blade carrier. Fixedly secured to and depending from theenlargements 56, 51 are vertically disposed rods 1I, 12 respectively.The rod 1| passes down through openings 29, 44 and 49. The rod 12 passesdown through openings 3|, 45 and 58. The rods depend below the washers41, 48. The lower ends of the rods 1|, 12 are secured to a pair ofdepending supports 13, 14 which are conneoted together by a shaft 15.Depending from the supports 13, 14 are hangers 16, 11 respectivelyformed at their lower ends with oppositely extending laterally disposedstuds 18, 19 respectively. Depending from the washers 41, 48 arecoupling pieces 88, 8| respectively. Anchored at their upper ends to thecoupling pieces 88, 8| are the controlling springs 82, 83 respectivelyfor the blade carrier. The lower ends of the springs 82, 83 are securedto the studs 18, 19 respectively. The downward movement of the bladecarrier is had against the action of the springs'82, 83, whereby theselatter will be extended and when pressure is relieved on the springs 82,83 the blade carrier will be returned to its normal position such asshown. in Figures 4 and 6.

The machine includes an actuatable device for lowering the upper cutterblade 53 to coact with the lower blade 54 toperform the pinkingoperation. The lowering of blade 53 is had against the action of thesprings 82, 83. The said device consists of a pivoted rectangular block84 (Figures 4, and 6) confined on shaft 15 centrally of the latter, anoscillatory lever 85 disposed in transverse relation with respect to andarranged below plate 48, an angle-shaped bracket 86 and a verticalhanger 81. The latter is anchored with and depends from the rear ofplate 48. The bracket 86 consists of a vertical leg 88 and a horizontalleg 89 extending rearwardly from the upper end of leg 88. The leg 89abuts and is anchored tothe lower end of hanger 81 by the hold-fastmeans 98. The rear end of lever 85 is pivotally connected to the lowerend of leg 88 as at 9|. The lever 85 rearwardly of its verticalmedian isformed with an enlargement 92 provided with a pocket 93 (Figure 3)opening at the top edge of the lever. Positioned within and projectingfrom the pocket 93 is a roller 94 revolubly mounted on a shaft 95secured to the side walls of the pocket. The forward end terminalportion of lever 85 is in the form of a yoke 96 in which is arranged theblock 84. The latter is slidable relative to yoke 96 and has its top andbottom bear against the inner faces of the arms of the yoke. The lever85 is adapted to be lowered, against the action of the springs 82, 83 bythe high part of a cam, forming an element of a rotatable cam structure91 to be referred to, contacting with the edge of the roller 94 wherebythe coaction of yoke 96, block 84 and shaft 15 will lower cross head 55to an extent to enable the cutter blades to perform the pinkingoperation. When the high part of the cam clears the roller 94, thesprings 82, 83 will restore the cross head 55 and. lever 85 to theposition shown in Figure 4. The cam of the said rotatable structure ispermanently in engagement with the edge of roller 94.

The rotatable cam structure 91 referred to is normally inactive and isadapted to be clutched to a driven operating mechanism 98 therefor, tobe referred to. The said mechanism 98 is permanently driven from adriving means 99 therefor, to be referred to.

The cam structure 91 (Figure 7) includes an integral unit having a borefrom end to end thereof to provide for the loose mounting of the unit ona portion of the mechanism 98. The unit consists of a sleeve I88, a camI8I integral with sleeve I88 intermediate the ends of the latter and aclutching member or pawl carrier I82 integral with the outer end ofsleeve I88. The carrier I82 is of block-like form and is provided in itstop with an angle-shaped groove I83 (Figures 3, '7 and 12) which extendsfrom the outer side to the inner side of the block. The carrier I82 hasextending from its inner side an arm I84. Positioned in the groove I83is a spring controlled clutching member or pawl I 85 of angle-shapedcontour formed with a horizontal leg I86 and a vertical leg I81depending from the outer end of the leg I86. The latter, intermediateits ends, is loosely and eccentrically thereof mounted on a pin I88extending across groove I83. The leg I86 of the clutching member I85 isof greater length than the leg I81. The high part of cam IN is indicatedat I89 (Figures 4 and 5). The rear end of leg I86, on the top edge ofthe latter, is formed with an upstanding lug I89 The driven operatingmechanism 98 (Figure 7) for the rotatable cam structure includes adriven shaft II8 mounted in and extended from spaced bearings I I I, II2 respectively supported in spaced parallel hangers I I3, I I4depending from and anchored to plate 48, a worm gear II5, a stop collarH6, and a combined stop and clutching collar H1. The gear H5 and collarsH6 and H1 are keyed upon shaft H8. The collars H6 and I I1 are arrangedin parallel spaced relation. The collar II1 has its outer edge formedwith spaced transverse grooves H8. The integral unit of the camstructure 91 consisting of the sleeve I88, cam I 8| and carrier I82 isloosely mounted on shaft H8 and confined between the collars H6, H1. Theshaft II8 has reduced end terminal portions I I 8. The cam structure 91is adapted to be con -is disposed at right angles to shaft H0.

.to the hangers H9, I20.

nected tothe shaft I I0 by'the engaging of the-leg I06 of the springcontrolled clutch member I in a groove H8 in collar H1. The controllingspring I05 of member I05 permanently acts to maintain the leg I06 ofmember I05 into clutching engagement with collar II1 as shown in Figure'1. The means for intermittently shifting member I05 from clutchingposition will be hereinafter referred to.

The driving means 99 for the mechanism 98 (Figure 2) includes a pair ofspaced parallel hangers H9, I which are anchored to and depend from theplate 40, bearings I2I, I22 mounted respectively in the hangers H9, I20,a motor driven shaft I 23 mounted on the bearings I2I,

I22 and having a reduced end terminal portion I24 extending from bearingI2I, a worm gear I25 on shaft I23 and a driven pulley I26 on the saidend terminal portion I24. The shaft I23 The worm I25 on shaft I23permanently meshes with the gear II5 on shaft IIO.

An open top U-shaped lubricant receiving receptacle I21-is arrangedbetween and is connected The shaft I23 is arranged in the lower portionof receptacle I21. The ends of receptacle I21 are closed by the hangersH9, I20 and attached to these latter is a brace bar I 28 for the bottomof receptacle I2 1. The shaft H0 is arranged over shaft I23 and extendsthrough the sides of receptacle I21. The shaft I23 operates in oil.

A lubricant or oil supply container is indicated at I29(Figure 2) andhas extending therefrom lubricant conducting lines I30, I3I, I32, I33and I34, which open into the bearing II2, bearing I22,-receptacle I21,bearing I2I and bearing III respectively. The container I29 is securedagainst an end edge of platform I.

Secured to the lower face of platform I is an electrical controllingswitch I35 (Figure 2) to which is connected a lead I36-from a power lineterminal not shown. The lead I36 has a plug I31 for detachableconnection with such line terminal. Suspended from the lower face ofplatform I is an electric motor I38 having its shaft l39'provided with apulley I40 of less diameter than the pulley I26. The latter is drivenfrom the pulley I40 by an endless belt I4I. Leading from the switch I35to the motor I38 is a motor driving circuit I42. Leading from the switchI35 is a lighting circuit" I43 for an electrical lamp or lamps I44(Figures 4, 5 and 8) arranged rearwardly of cross head 55. The lamp orlamps I44 are suspended by a tubular support I45 into which the circuitI43 extends. A reflector M6 is associated with the lamp or lamps andsuspended from support I45. The circuit I43 extends through platform I.

The lower face of plate 40 has formed therein a:lengthwise extendingrecess I41 (Figure 9) having the part I48 thereof of rectangular crosssection and its remaining part I49 of substantially arcuatecross-section(Figure 12). The part I48 is of greater length than part I49. The recessI41 is arranged-above and aligns with the structure 91 and mechanism 98.

The means for intermittently removing the clutch member or pawl I05 tonon-clutching position for the purpose of discontinuing the operation ofthe cam structure 91 by its driven operating mechanism 98 consists of arectangular plate I50 (Figures 3, '1 and 9) slidably suspended in therecess I41. The plate I50 is formed with an elongated slot I5I extendinglengthwise thereof. De-

pending from the plate 40 is a pair of fixed spaced headed suspensionmembers I52, I53 upon which plate I50 slides. The plate I50 hasdepending from one end thereof a lug I54 connected to the inner end of apull bar or rod I55 which slidably extends through and outwardly fromthe upper portion of hanger H4. The bar I55 intermediate its ends hasfixed thereto a collar I56. Arranged below and positioned against thelower face at one end of the plate 40 (Figures 2, 3 and 7) is a shortbar I51 disposed in transverse relation relative to plate 40. Positionedagainst the lower face of the bar I51, at the ends of the latter are theinner ends or spaced parallel bars I58, I59. The bars I51, I58, I59 arefixedly secured to the plate 40 by the holdfast devices I60, NH. The barI51 is formed with an opening I62 for the passage of the bar I55.Encompassing the bar I55 between the collar I56 and the bar I51 is acompression spring I63. The opening I62 is disposed centrally of bar I51and the bar I55 extends outward from said bar. The bar I55 inwardlyadjacent its outer end terminal portion I64 has fixed thereto a head I65arranged in spaced relation with respectto bar I51. The head I65 isslidably mounted on the bars I58, I59. The outer ends of the bars I58,I59 are connected together by an upstanding cross piece I66 adapted tobe secured to the lower face of the platform I or not so secured. Thebar I51 has depending therefrom a pair of spaced apertured lugs I61which extend downwardly through the space between the bars I58, I59. Thespring I63 acts on the bar I55 to shift it to the position shown inFigure 3 for the purpose of bearing on the lug I09 for shifting theclutch member or pawl I05 to the position shown in Figure 3 whereby theoperation of the cam structure 91 from the mechanism 98 will bediscontinued. When the plate I50 moves clear of the lug I09 the memberor pawl I05 will move to clutching position due to the action of itspring I05.

The plate I50 is moved to a position to clear lug I09 against the actionof the spring I63 by a pulling structure which includes the push rod I8and the foot lever or tread I2 and the other elements of such pullingstructure will now be referred to.

Mounted in the lugs I61 is a pivot I68 and loosely mounted on such pivotis a push lever I69 formed of a pair of legs I10, I1I disposed at rightangles to each other. The lever I69 is horizontally disposed. The leg "Iof lever I69 extends upwardly from the outer end of the leg I10. Thelatter is mounted on the pivot I68. The leg I 10 is of greater lengththan the leg I1I. The leg I1I is formed at its upper end with a slot I12for the bar I55. The leg I1I extends upwardly through the space betweenthe bars I58, I59. The upper end of leg IN is reduced and is arrangedbetween the bar I51 and the head I65 on bar I55. The normal position ofthe bar I55 is as shown in Figure '1. The inner end of leg I10 isapertured and loosely connected to the upper end I9 of the push rod I8.In the position shown in Figure 7, the spring I63 has been compressed.In Figure 3, the spring is shown as expanded. When the front of treadlever I2 is forced downwardly, the push bar I8 is moved upwardly whichin turn carries the leg I10 of lever I69 upwardly therewith whereby theleg I1I of lever I69 will engage head I65 of bar I55 and move said baroutwardly from the position shown in Figure 3 to the position shown inFigure '1. When the bar I55 is moved outwardly, the plate I50 is carriedtherewith and moved clear of the lug I09 whereby the member I05 will bemoved by its controlling spring to clutching position relative to thecollar I I1 and the structure 91 will be clutched to the mechanism 98.

For the purpose of normally maintaining lever I69 in the position asshown in Figure 3, that is to say, with the leg I1I of such leververtically disposed, the said leg is shouldered-as at I13 and is adaptedto abut the head I65.

The machine includes a spring controllled vertically movable guardstructure I14 which also functions in a manner as a presser footrelative to the material being acted upon. The structure I14 includesthe push rod I4 and the latter constitutes a means for shifting thestructure I14 against the action of its controlling spring. Thestructure I14 includes a vertically movable post I15 which operatesthrough a sleeve I16 secured in opening 21. The sleeve I16 is formedwith a flange I11 suitably secured to the upper face of the platform I.The post I15 carries a stop collar I18 capable of engaging the flangeI11 on the downward movement of the post I15. The post I15 is arrangedforwardly of and in lateral relation with respect to sleeve 31. Formedintegral with the post I15 and extending at right angles thereto andacross the plate 22 is a bar I19 having spaced rearwardly extendingcouplers I80 which are anchored to the front face of a rectangular guardI8I disposed on its lower lengthwise edge, arranged over the cutter 54and functioning to prevent an attendants hand being positioned at apoint to be injured during the pinking operation. The guard I8I alsofunctions as a presser foot as when it is in active position it bears onthe material I80 to be operated upon and in this connection attention isdirected to Figures 4 and 5. The bar I19 and guard I8I are bodilymovable with the post I15. To prevent the outward swinging of the barI19 relative to the cross head 55 a stop I82 is arranged outwardly ofand intermediate of the ends of the bar I19.

The post I15 is arranged sidewardly of the bar I19 and is formed with areduced lower portion I83 formed at its lower end with an opening I84(Figure 3) for the passage of the upper end I5 of the push bar I4. PostI15 carries a fixed collar I85. Mounted on post I15 and interposedbetween the platform I and the collar I85 is a coiled controlling springI86 for the structure I14. Fixedly secured to the reduced portion I83 ofpost I15, above the lower end of such portion is the end of a carrierI86 (Figures 2 and 3) which is disposed in transverse relation withrespect to platform I. The carrier extends from the post I15 to belowthe space between the bars I58, I59 and has fixed to its inner end avertically disposed stop I81 which operates in the space formed betweenthe bars I58, I59 and forms when raised a stop for arresting theaccidental shifting of the plate I50 to release the member I05 when theplate is in the position shown in Figure 3. The stop I81, when mechanismI14 is moved upwardly, is arranged in the path of the rear end of thebar I55 to arrest the outward movement of the latter thereby preventingthe shifting of plate I50 to clear the lug I09 and by such arrangementsafety member I05 will not be shifted to clutching position byits'spring I05 This provides a safety arrangementzto prevent anypossibility of the attendant being injured, when positioning thematerial to be acted upon, when the structure I14 is elevated.

In Fig. '7 the stop I81 is in position to block the raising of thesafety guard I14-while the clutch is in. In other words the stop I 81blocks by its top end (see Fig. 7) a raising of the safety guard I14when the clutch is in, and by its side pre- On depressing the outer endof the lever I I, the

push rod I4 will elevate the structure I84 against the action of itscontrolling spring I86 and at the same. time shift the stop I81 upwardlyto oppose the outer end ofthe bar I55. When the structure 884 is in itslowered position, the outer end of bar or rod I55 clears the upper endof stop- I81. The structure I85 is moved to guard position by itscontrolling spring when lever II is relieved of pressure.

The upper ends of the combined guide and stop elements 85, 61 carrylubricant cups I88. The shields 36, 31 are provided for the enlargements58, 51.

When lever or foot tread I I is depressed to raise the push rod I4 andstructure I14, it also raises the stop I81 which prevents the rod or barI55 from moving far enough to the right to permit the engagement of theclutch if lever or foot tread I2 is depressed.

When lever or foot tread I2 is depressed, the rod or bar I8 movesupwardly through its connection with the rod or bar I55, the latter andthe plate I50 are moved to the right and at the same time compress thespring I63. When the plate I58 is moved to the right it allows themember or pawl I05 to enter a groove H8 in the collar II1, which is dueto the action of the spring I05? As the collar H1 is continuously inmotion it provides when the structure 91 is clutched thereto to causesuch structure to bodily rotate therewith and the result is that the camI! will coact with the lever 85 to cause the lowering of the uppercutter 53. The upper cutter 53 then coacts with the lower cutter 54 toprovide the pinking operation. On the revolving of the structure 91 themember I and the arm I04 move out of the way or rather clear of theplate I50 and allow the plate I50, due to the action of the spring I63,to move into the position as shown in Figure 3, as the pressure at thistime has been released on the lever I2. The pressure on lever I2 is tothe extent that the drive shaft will start. After a complete rotation ofthe structure 91 the lug I09 abuts plate I50 which disengages thestructure 91 from the collar H1 and at the same time the arm I04 engagesplate I50 to arrest movement of the structure .91. Thus the machinecompletes the cycle and the reciprocation of the upper cutter isautomatically stopped until the lever I2 is again depressed.

What we claim is:

1. In a pinking machine, a. cutter means including a stationary lowercutter and a reciprocatory spring controlled upper cutter structure, anormallyinactive shiftable lever coacting, when shifted with saidstructure, for imparting a cutting stroke to said means, a revolublenormally inactive cam structure, providing when active for shifting saidlever, a revoluble drive mechanism upon which the cam structure isloosely mounted, said cam structure and mechanism having controllableooacting means for clutching the cam structure and mechanism together toprovide for the revolving of the cam structure with said mechanism,'aspring controlled shiftable element for controlling and normally actingtoretain said ooacting means from clutching'said-cam structure andmechanism together, pressure operated means for shifting said elementagainst the ac tion of its controlling spring from retaining positionrelative to said coacting means whereby the latter will clutch the camstructure and mechanism together, and a pressure operated springcontrolled vertically movable normally lowered combined guard, presserfoot and stop mechanism, normally acting for holding down the work to beoperated upon over the lower cutter and in the path of the upper cutterand providing when elevated to release the work, acting to arrest theshifting of said element from retaining position relative to the saidcoacting means.

2. In a pinking machine, a supporting structure including a platformformed with an opening, a cutter means including a lower cutter carriedby said platform and extending into said opening and a reciprocatoryspring controlled structure extending through the platform. and formedwith an upper cutter for extension into said opening to coact with thelower cutter, a normally inactive shiftable lever below and supportedfrom said platform, bearing on said structure andprovided when shiftedfor imparting a cutting stroke to said cutter means, a revolublenormally inactive cam structure supported from and below the platformandproviding when active for shifting said lever, a revoluble drivemechanism upon which the cam structure is mounted, said cam structureand mechanism having controllable coacting means for clutching the camstructure and mechanism together to provide for the revolving of the camstructure with said mechanism, a spring controlled shiftable element forcontrolling and normally acting to retain said coacting means fromclutching said cam. structure and mechanism together, pressure operatedmeans for shifting said element against the action of its controllingspring from retaining position relative to said coacting means wherebythe latter will clutch the cam structure and mechanism together, and apressure operated spring controlled vertically movable normally loweredcombined guard, presser foot and stop mechanism normally acting forholding down the work to be operated upon over the lowencutter and inthe path of the upper cutter and provided when elevated to release thework acting to arrest the shifting .of said element from retainingposition relative to the said coacting means.

3. In a pinking machine, a cutter means including a stationary lowercutter and a spring controlled reciprocatory structure carrying an uppercutter for coaction with the lower cutter, means for'shif ting saidstructure, against the action of its controlling spring, in onedirection for imparting a cutting stroke to said'cutter means, a drivenmeans including a revoluble part, a normally inactive revoluble camstructure loosely mounted on said part providing when revolved theshifting of the means for shifting the said reciprocatory structure anda clutching means permanently tending to connect the cam structure tosaid part to cause the cam structure to bodily revolve with said part, ashiftable controlling means for said clutching means'to normally retainthe latter in non-clutching relation with respect to said part and camstructure, spring controlled means for shifting said controlling meansfrom its retaining position relative to said clutching means, andmeans'to prevent the shifting of said controlling means from itsretaining position relative to said clutching means when removingcompleted work and positioning work to be acted upon.

4. In a pinking machine, a cutter structure, means 'for imparting acutting stroke to said structure, a structure for operating, said meansincluding a driven revoluble part, a revoluble part loosely mounted onsaid other part and a clutching means permanently tending to connectsaid parts together to provide for the revolving thereof. in unison, ashiftable controlling means normally impacted by and tending to retainsaid. clutching means in non-clutching position, spring controlled meansfor shifting said controlling means temporarily from and to itsretaining position to permit respectively of the clutching meansconnecting said parts together whereby said parts will revolve in unisonand to be impacted by said clutching means on a completion of therevolution of said parts to unclutch said parts, and means for arrestingthe shifting of said controlling means from retaining position relativeto saidclutching means on the removal of completed work and thepositioning of. work to be acted upon.

5. In a pinking machine, a cutter means including a horizontallydisposed lower cutter having a straight cutting edge formed withserrations and a vertically movable spring controlledreciprocatory.structure arranged above and depending below the lower. cutterandhavingan upper cutter disposed throughout at an inclination to the horizontalandprovided with an inclined cutting edge formed with serrationsdisposed in lateral offset relation with respect to the serrations ofthe lower cutter.

6. In a pinking machine, a cutter means including a horizontallydisposed lower cutter having a straight cutting edge formed withserrations and a vertically movable spring controlled reciprocatorystructure arranged above and depending below the lower cutter and havingan upper cutter disposed throughout at an inclination to the horizontalandprovided with an inclinedcutting edge formed with serrations disposedin lateral .ofiset relation with respect to the serrations ofthe lowercutter, and shiftable controlling means .slidablyengaging the lowerportion of said structure for lowering the latter in a direction toimpart a cutting stroke to said cutter means.

'7. In a pinking machine, a cutter means including a horizontallydisposed lower cutter having astraight cutting edge formed withserrations and a vertically movable spring controlled reciprocatorystructure arranged above and depending below the lower cutter and havingan upper cutter disposed throughout at an inclination to the horizontaland provided with an inclined cutting edge formed with serrationsdisposed in lateral ofiset relation with respect to the serrations ofthe lower cutter, shiftable controlling means slidably engaging thelower portion of said structure for lowering the latter in a directionto impart a cutting stroke to said cutter means, and a controllablerevoluble cam structure arranged over and for engaging, during arevolution thereof the said shiftable controlling means for shifting thelatter in a direction to lower said spring controlled vertically movablestructure.

8. In a pinking machine, a cutter means including a horizontallydisposed lower cutter having a straight cutting edge formed withserrations and a vertically movable spring controlled reciprocatorystructure having a horizontally disposed upper cutter provided with aninclined cutting edge formed with serrations disposed in lateral offsetrelation with respect to the serrations of the lower cutter, shiftablecontrolling means slidably bearing on the lower portion of saidstructure for lowering the latter in a direction to impart a cuttingstroke to said cutter means, a con- 7 trollable revoluble cam structurefor engaging during a revolution thereof the said shiftable controllingmeans for shifting the latter in a direcion to lower said springcontrolled vertically movable structure, and means for preventing therevolving of the cam structure when removing completed work andpositioning work to be operated upon.

9. In a pinking machine, a cutter means including a horizontallydisposed lower cutter having a straight cutting edge formed withserrations and a vertically movable spring controlled reciprocatorystructure having a horizontally disposed up per cutter provided with aninclined cutting edge formed with serrations disposed in lateral oifsetrelation with respect to the serrations of the lower cutter, shiftablecontrolling means slidably hearing on the lower portion of saidstructure for lowering the latter in a direction to impart a cuttingstroke to said cutter means, a controllable revoluble cam structure forengaging during a revolution thereof the said shiftable controllingmeans for shifting the latter in a direction to lower said springcontrolled vertically movable structure, and a normally lowered springcontrolled guard structure arranged forwardly of said cutter means fornormally holding down the work to be operated upon and including meansacting when said guard structure is elevated to prevent the operation ofsaid cam structure.

10. In a pinking machine, a cutter means, a driven operating structurefor said cutter means including a pivoted shiftable'lever bearing onsaid cutter means, a normally non-revoluble part for shifting said leverwhen said part is revolved and controlled clutching means when activecausing said part to be revolved, a shiftable controlling means formaking said clutching means active and inactive relative to said part,and means to prevent the revolving of said part when removing completedwork and poistiom'ng work to be acted upon.

11. In a pinking machine, notching cutter means including a stationarylower cutter and a vertically disposed reciprocatory structure arrangedover and depending below said lower cutter and being formed at its upperportion with an upper cutter, said structure being provided centrally ofits lower end with a pivoted block, an oscillatory lever arranged belowsaid lower cutter and having one end overlapping and slidably engagingsaid block, and a clutchable driven means arranged over and having apart wiping said lever intermediate the ends of the latter for shiftingthe lever in a direction for imparting a cutting stroke to said cuttermeans and a vertically movable normally lowered combined guard, presserfoot and stop mechanism providing when lowered for holding down the workto be operated upon over the lower cutter and in the path of the uppercutter and when elevated to release the work and to arrest the action ofthe clutchable driven means.

12. In a pinking machine, a cutter means including a stationary lowercutter and a reciprocatory upper cutter, a normally inactive shiftablelever arranged below said lower cutter and coacting when shifted withsaid structure for imparting a cutting stroke to the means, a revolublenormally inactive cam structure providing when active for shifting saidlever, a drive mechanism upon which the cam structure is looselymounted, said cam structure and mechanism having controllable coactingmeans for clutching the cam structure and mechanism together to providefor the revolving of the cam structure with said mechanism, a shiftableelement for controlling and normally acting to retain said connectingmeans from clutching said cam structure and mechanism together, meansfor shifting said element from retaining position relative to saidacting means whereby the latter will clutch the cam structure andmechanism together, and a Vertically movable normally lowered combinedguard, presser foot and stop mechanism providing when lowered forholding down the work to be operated upon over the lower cutter and inthe path of the upper cutter and when elevated to release the work andto arrest the shifting of said element from retaining position relativeto the said coacting means.

STEPHEN NASO. FRANK GOODSTEIN.

